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Cookie Policy (Japan)

Last updated: 23 September 2025

Service: Chatty Sensei (www.chattysensei.com)

This Cookie Policy explains how Chatty Sensei ("we", "our", "us") uses cookies and similar technologies on our website and app.

1) What we use

Essential cookies (required)

Used to keep you logged in (via Clerk), protect against CSRF, and store minimal user preferences needed for the app to function.

Analytics (Vercel Analytics)

We use Vercel Analytics for traffic insights. It's cookieless and stores anonymized data, so no analytics cookies are placed on your device.

Marketing/advertising

None. We do not use ad, retargeting, or marketing pixels.

2) Essential cookies (details)

We use strictly necessary cookies that:

  • Maintain your login session (Clerk).
  • Provide CSRF protection and security.
  • Remember essential preferences (e.g., language/theme) needed to render pages correctly.

You cannot opt out of essential cookies because the service will not work without them. Clerk's session relies on browser cookies.

Typical lifetimes

  • Session/auth: session-based or short rolling expiry (managed by Clerk).
  • Essential preferences: up to 12 months (minimum necessary for functionality).

3) Your choices

Because our analytics is cookieless and we don't use marketing cookies, there's no need for granular consent. You can still:

  • Control cookies in your browser (block, delete, or limit).
  • Use our one-click acknowledgement (see banner) to dismiss the notice.

4) Changes

We may update this policy from time to time. We'll post the new date at the top when we do.

5) Contact

Questions? Email contact@chattysensei.com